Product Details | FLAT WASHER

5310-01-081-5062 A washer having a centrally located hole with a solid or laminated cross-section and two flat parallel bearing surfaces. The hole must be 75 percent or less than the largest dimension and the bearing surface finish is greater than 32 microinch (0.8 micrometer). The thickness cannot exceed 25 percent of the largest outside dimension. When the largest outside dimension is less than 1/4 inch or 6mm, the thickness must be 0.006 inches (0.15mm) or greater and for items 1/4 inch (6mm) or larger, the thickness must be 0.016 inches (0.4mm) or greater. The maximum tolerance is applied to dimensions and used as a determining factor. Items with separable lamination use SHIM. For items fabricated from ceramic or electrically rated materials by specification or industry standards use INSULATOR (1), WASHER. Excludes DISK, VALVE, graphite impregnated and lubricated items.

Part Alternates: ST4M2036, ST4M203-6, 5310-01-081-5062, 01-081-5062, 5310010815062, 010815062

Hardware and Abrasives | Nuts and Washers

Supply Group (FSG) NSN Assign. NIIN
53 15 AUG 1979 01-081-5062

Drawings & Photos | NSN 5310-01-081-5062


Cross Reference | NSN 5310-01-081-5062

Part Number Cage Code Manufacturer
ST4M203-6 76301 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 5310-01-081-5062

Characteristic Specifications
MATERIAL STEEL COMP 4130 OR STEEL COMP 4135 OR STEEL COMP 8630 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION MIL-S-18729 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC 1ST MATERIAL RESPONSE AND MIL-S-18733 MIL SPEC 2ND MATERIAL RESPONSE AND MIL-S-18728 MIL SPEC 3RD MATERIAL RESPONSE OVERALL
SURFACE TREATMENT CADMIUM OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION MIL-C-8837 TYPE II CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
COLOR BLUE OVERALL
HARDNESS RATING 40.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM
HOLE DIAMETER 0.390 INCHES NOMINAL
PERIPHERAL SHAPE STYLE 1 ROUND
OVERALL DIAMETER 0.625 INCHES NOMINAL
CENTER HOLE SHAPE STYLE 1 ROUND
CROSS-SECTIONAL SHAPE STYLE 1 RECTANGULAR
THICKNESS 0.032 INCHES NOMINAL
MANUFACTURERS CODE 76301
DESIGN CONTROL REFERENCE ST4M203-6

Restrictions/Controls & Freight Information | NSN 5310-01-081-5062

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 097510 WASHERS I/S CHROMIUM/NICKEL PLATED
Less than car load rating S 60
Less than truck load rating R 65.0
Water commodity Code 713 unknown
Originating Activity Code SU Ogden Air Logistics Center
Hill AFB, UT 84056-5609
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code Z unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5310-01-081-5062

Category Code Description
Cognizance Codes9ZNavy-owned stocks of defense industrial material
Naval Inventory Control Point, Mechanicsburg
Source of SupplyS9IDefense Industrial Supply Center
Philadelphia, PA 19111
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesYTERMINAL ITEM #(NON-STOCKED ITEMS) Future procurement is not authorized. No wholesale stock is available for issue. 1. Requisitions will not be processed to the wholesale manager. 2. Internal Service/agency requisitioning may be continued in accordance with the Service/agency requisitioning policies.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each